HELISOL® 5A
- Chemical Family
- Silicones
HELISOL® 5A is a linear, non-reactive polydimethylsiloxane with a viscosity of approximately 5 mm²/s. Its unique chemical structure gives it exceptional properties that differentiate it from organic materials like mineral oils. HELISOL® 5A is a clear, odorless, and colorless liquid.
Properties
- Physical Form
- Fluid
- Liquid
Product families
- Heat Transfer Fluids
Other characteristics
- Brand
- HELISOL
- Features
Anti-Fouling, Good Blocking Resistance, Good Thermal Stability, Heat Resistance, High Durability, High Efficiency, High Linearity, High Reliability, High Temperature Strength, Improved Heat Transfer Efficiency, Long Shelf Life, Low Density, Low Pour Point, Low Viscosity, Non Corrosive, Odorless, Very Good Heat Resistance, Wide Temperature Operating Range
- Product Type
- Heat Transfer Fluid
- Odor
- Odorless, Musty odor
- Color
- Transparent
- Markets
- Industrial
- Appearance
- Clear colourless liquid
- Properties
- High heat resistance
- Low pourpoint
- Lower density than water
- Long life
- Low fouling potential
- Non-corrosive
- No hazard classification
- Insoluble In
- Water
- Safety Note
- Reactivity; Chemical stability
- Possibility of hazardous reactions No hazardous reactions known if properly stored. When it is used as intended (up to 425 °C), amounts (< 25%) of a mixture of D-cyclic siloxanes (including octamethylcyclotetrasiloxane (D4, CAS 556-67-2) and decamethylcyclopentasiloxane (D5, CAS 541-02-6)) are formed. This depresses the flash point and increases the vapor pressure.
- Conditions to avoid
- Permeation of oxygen and water or any contamination at operating temperature.
- Incompatible materials
- None known.
- Hazardous decomposition products
- When it is used as intended (up to 425 °C), it has been found that in the absence of oxygen and after relatively long operating times, extremely small quantities of methane, hydrogen and volatile silanes (tetramethylsilane, CAS 75-76-3 and trimethylsilane, CAS 993-07-7) may be produced, which further depress the flash point.
- Technology
- Ready-to-Use Products
- Base Oil
- Polydimethyl Siloxane
- Packaging Type
- Bottles
- Drums
- Totes (IBC)
- Labeling Claims
- Animal Products-free
- BSE-free
- Low Pour Point
- Non-Corrosive
- Non-Reactive
- Odor-free
- TSE-free
- Quality Standards
- BS EN 71:2016 Safety of Toys Standard
- Specific Features
- Fluid
- Good heat stability
- Heat resistant
- Silicone Fluid
- Stable upon heating
- Application Details
Heat transfer fluid in closed systems under inert conditions from -40 °C up to 425 °C.; Recommended use in liquid phase
- Storage Information
Maximum temperature allowed during storage and transportation: 50°C.
Technical data
Table 1 of 1
11 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Boiling Point | 215 | °C | EG-Methode A.2 |
| Maximum Permitted Film Temperature | 450 | °C | — |
| Density (at 25.0°C) | approx. 0.92 | g/cm³ | — |
| Maximum Permitted Working Temperature | 425 | °C | — |
| Flash Point | 120 | °C | Pensky-Marten |
| Heat of Combustion | 26.3 | MJ/kg | DIN 51900 |
| Ignition Temperature | 358 | °C | EN 14522 |
| Kinematic Viscosity (at 25°C) | 4 - 6 | mm²/s | DIN 51562 |
| pH | approx. 7 | — | — |
| Pour Point | max. -55 | °C | DIN ISO 3016 |
| Water Content | max. 150 | ppm | DIN 51777 |
